This paper has focused first on how remarkably research on emotion and mood with questionnaire had contributed to give evidence for Darwin's theory, cognitive appraisal theory, and social constructivists' view. The second purpose of this paper was to review a variety of paper-pencil methods (e. g. open ended question, rating scale method), and show what methods are needed to research emotional experiences, state, and trait. Finally, the future direction of questionnaires about emotion and mood was discussed. It was suggested that the questionnaires available in a clinical situation would be constructed and used more to verify the theories of maladaptive emotions, and researchers should show which the existing questionnaires had more reliability and validity than others.
